Phenolic Compounds from Nuts: Extraction, Chemical Profiles, and Bioactivity
Romina Bodoira, Damián Maestri
Journal of Agricultural and Food Chemistry
Abstract
Nuts contain a vast array of phenolic compounds having important biological properties. They include substances allocated into the five major groups named phenolic acids, flavonoids, tannins, phenolic lignans, and stilbene derivatives. The complexity in composition does not allow for setting a universal extraction procedure suitable for extraction of all nut phenolics. The use of non-conventional extraction techniques, such as those based on microwave, ultrasound, and compressed fluids, combined with generally recognized as safe solvents is gaining major interest. With regard to the latter, ethanol, water, and ethanol-water mixtures have proven to be effective as extracting solvents and allow for clean, safe, and low-cost extraction operations. In recent years, there has been an increasing interest in biological properties of natural phenolic compounds, especially on their role in the prevention of several diseases in which oxidative stress reactions are involved. This review provides an updated and comprehensive overview on nut phenolic extraction and their chemical profiles and bioactive properties.
Extracted Claims
5 claims extracted from this paper into the knowledge graph
natural phenolic compounds have role in the prevention of several diseases
“In recent years, there has been an increasing interest in biological properties of natural phenolic compounds, especially on their role in the prevention of several diseases in which oxidative stress ...”
phenolic compounds from nuts include phenolic acids, flavonoids, tannins, phenolic lignans, and stilbene derivatives
“They include substances allocated into the five major groups named phenolic acids, flavonoids, tannins, phenolic lignans, and stilbene derivatives.”
non-conventional extraction techniques use microwave, ultrasound, and compressed fluids
“The use of non-conventional extraction techniques, such as those based on microwave, ultrasound, and compressed fluids, combined with generally recognized as safe solvents is gaining major interest.”